Provided is a partition device that can effectively perform lighting, ventilation, and droplet diffusion suppression in combination. A partition device having at least one partition member, the partition member comprising a body that is plate-shaped and a face material disposed on at least one of the bodies, The body has a plurality of transmission parts penetrating in a thickness direction of the body, and the face material has a plurality of openings penetrating in the thickness direction of the face material. Fig. 14

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